The level design in this is terrible. We establish early on that cars can't drive off the edge of a level then we have a level where we have to do exactly that in order to win.
@dragonxcore - the achievements suck. They're essentially do the same thing over and over. Boring grind. When I say replay value I mean something that actually makes it worth playing again - not playing it again just cos the game says I should and simply doing EXACTLY THE SAME DAMN THING.